The 4th of July Sale

Find Your Peace and Quiet During Indow's 4th of July Savings Event

Save up to 20%

Take your home to the next level of comfort and quiet this summer! With record heatwaves and bustling outdoor activities in full swing, Indow window inserts can reduce your AC use by 20%, keep the noise out, and make your home the oasis you've always wanted — all year long.

THE MORE YOU ORDER, THE MORE YOU SAVE!

  • 3-5 INSERTS

    SAVE
    10%

  • 6-9 INSERTS

    SAVE
    15%

  • 10+ INSERTS

    SAVE
    20%

Combine these savings with the Energy Efficient Home Improvement Tax Credit for up to 40%* in total savings! Don't delay - start your order** by Friday, July 11 to take advantage of these discounts!

Indow Window Inserts Are the Perfect Addition for Summer

  • Standard Grade Window Inserts

    Energy Efficiency:
    Reduce energy consumption by 20%

    Noise Reduction:
    Dampen outside noise by up to 50%

    Comfort All Year:
    Keep your home cool in summer and cozy in winter

    Standard 3' x 4' window insert starts at $372.
    Save up to $151 per window

  • Acoustic Grade Window Inserts

    Superior Noise Control:
    Cut outside noise by up to 70%

    All Standard Grade Features:
    Enjoy the same energy efficiency and year-round comfort as our Standard Grade Window Inserts.

    Standard 3' x 4' window insert starts at $480.
    Save up to $285 per window

Don’t Miss Out on This Limited-Time Offer

This summer, make your home a cooler, quieter, and more comfortable place to relax. Take advantage of exclusive savings and see why Indow inserts are one of the simplest ways to upgrade your home.

  • * 40% savings based on maximum instant discounts and maximum IRA tax credits.

  • ** Discount valid for residential customers who place a deposit by 7/11/25 and submit final payment by 8/8/2025. Cannot be combined with other offers.

  • † Tax credits are based on individual eligibility. Consult a tax professional to verify your specific situation. Custom pricing applies for non-rectangular windows. Reach out for more details.

The Indow Window Difference

  • Guaranteed To Fit

    Your inserts are custom made to your exact window measurements with our proprietary compression tubing, ensuring a nearly airtight seal and backed by our Snug Fit Guarantee.

  • Quality Built For A Lifetime

    Your inserts feature premium insulating acrylic that is built to withstand daily use and engineered to perform for the lifetime of your home. Guaranteed to be free from defect by our Lifetime Warranty.

  • Easy To Install & Remove

    Installation is simple - no tools or modifications to your existing window frames are necessary. Simply slide them into place in seconds and experience immediate results.

  • Handcrafted In The USA

    Each insert is proudly handcrafted in our Portland, OR facility using materials sourced right here in the USA, which allows us to maintain rigorous quality control and meet our exacting standards.

Trusted Since 2010

Indow has insulated more than 23,000 buildings - helping reduce carbon emissions by nearly 200,000 tons - and creating comfort across the US & Canada!

Excellent

4.49 Average  Rating

1521 Reviews

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    We installed the windows in our four seasons room We got some 85 degree days recently and the area stayed amazingly cool usually we would have the AC on it was not needed !!!

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    Indow has established the complete breadth of custom service, from initial enquiry to being very responsive to "after-sales" questions. Ours was and out-of-the ordinary project involving casement windows in a solarium and the end result turned out quite perfectly. Access to information online, instructions arriving with the delivered windows, and answers by phone insured we "enthusiastic amateurs" completed the job to satisfaction.

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    I am very pleased with my Indow window inserts. I have a very old house and am near a busy road. I wanted to reduce the noise. I've just installed them and find a considerable reduction in traffic noise. They definitely were worth the cost. The measuring process is quite detailed but easy to follow and my inserts fit perfectly in crooked, 265 year old openings. The company representative Hannah Hendrickson

    was very professional, knowledgeable, and courteous. I highly recommend the Indow

    company.

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    I appreciate everything about the whole Indow window process.

    Scheduling and holding a consultation online was easy and seamless. I consultant with KAYA, and he provided a thorough easy-going no pressure to move forward until I was ready consultation.

    Incentives were clearly outlined if I decided to move forward and order to be able to make my inserts even more affordable if I acted in a timely manner with measuring and submitting my order as well as returning the measure kit.

    The Indow inserts arrived within the expected timeframe and installing them was very easy. One of my favorite parts was watching how to install video, because they used humor, and it really held my attention and put me at ease, allowing me to take in all the little details I needed to insert my Indows correctly.

    Within hours, I noticed a temperature shift in the room. It was cooler and more comfortable. The next day when I worked in my office with the Indows the landscaper was across the street with the leaf blower and there was considerable reduction in noise making it a low background buzz instead of a disturbance to the work I was doing. I’ve only had them installed for three weeks and I’ve been so happy with them. It was a great investment for that room in the house that I use for my office.

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    A great product. Excellent fit. Greatly reduced outside noise. Easy to install. Very happy!! Match your frame color to your current frame color and they disappear. So glad I got them.

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    Well it all starts with customer service. 10 out of 10. Brain McCracken did a great job. The waiting period wasn’t long considering they had to make the window inserts and measuring the window units with the laser was actually fun. Worth every penny!

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    They are working great! Very happy with the purchase.

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    I'm enjoying the units, however will need to wait until next year's colder weather to get a truer feel or read on how well they work - thanks

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    They work very well for my 3 Bedroom windows.easy to install.

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    I purchased two Indow window inserts for two west-facing bedroom windows. These windows are exposed to the hot afternoon sun, making it difficult to cool the bedroom, and there is considerable outside noise. The Indow inserts work great at reducing the outside noise and keeping my bedroom cooler. I absolutely recommend Indow window inserts.

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    Very professional from website to delivery and installation was well explained and easy.

    Noise reduction was quite noticeable and sealing from cold just as good if not better.

    Would recommend 100%.

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    Wonderful product

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    My husband and I can finally sleep all night without being woke up by outside noise! Indows are game changers if you live on a busy road, by a loud industrial business or just want a quieter inside environment. The customer service is pretty amazing too! Thanks Indow group for giving us back great sleep!!

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    fit perfect, weny in easyand make a diffrence with noise ,thank norbert

  • 5 Stars ⭐️⭐️⭐️⭐️⭐️

    Easy DIY measuring, and an obvious immediate increase in warmth. Huge difference in a historic home with historic windows.

Indow For Your Windows

  1. 1

    Request a Free Estimate. We'll provide you with a preliminary estimate based on your basic window dimensions. It's quick and easy!

  2. 2

    Measure your windows with our easy-to-use laser measurement kit. We'll guide you through the simple process, ensuring a perfect fit.

  3. 3

    Customize your inserts to match your needs and your aesthetic, with tubing colors that seamlessly blend into your space.

  4. 4

    Transform your space with custom-crafted inserts shipped directly to your home, ready to fit perfectly in your windows.

WE SHIP TO YOU!

You're one step closer to creating more comfort & quiet in your home.

Congratulations!

To receive a customized estimate for your space or learn more about how Indow inserts can improve the comfort, quiet, & efficiency of your home, fill out the fields below.

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